What is the use of the win7 system protection wall

(a) allows you to customize the security rules according to different usage environments

User security of the firewall in different computer
use environment The requirements are also different, such as in the office or home LAN, in order to facilitate users in the LAN to transfer files or play games together, do not need too high firewall security rules; and often hold notebooks
everywhere When the public Wifi connection is connected to the Internet, you do not want any external connection to access your own computer
, you need to set a higher firewall security rules. Win7's own firewall provides easy definitions for different
network
environments. You only need to click on the left side of the Win7 firewall main interface to open or close the Windows Firewall. You can open the firewall's custom interface, where users can set different settings for the home or work LAN and the public
network
Security rules.

Users in both networks have the option to "enable" and "close", which is to enable or disable the Windows Firewall. There are two checkboxes under Enable Firewall, one is “Block all incoming connections, including programs in the list of allowed programs”, and the other is “Notify me when the Windows Firewall blocks new programs”. When the user enters a less secure network environment, you can check the "Block all incoming connections" check box to block all external connections, even if the Windows Firewall is set to "Exception" service will be Blocking and providing tight security for computers in complex environments.

(2) Support detailed software personalization settings, users can individually allow a program to communicate through the firewall.

Click the "Allow program or function through Windows Firewall" in the menu on the left side of the Win7 firewall main interface. You can see the commonly used network software in the list. We can check the checkbox here or Block the communication status of a program software on a home or public network. If you need to add the degree or function that allows you to pass the Win7 firewall, just click on the "Allow another program" button in the lower right corner to set up the program that needs to pass through the firewall.

In the "Add Programs" interface, we can manually select the programs in the program list. If some programs do not appear in the list, you can also click the "Browse" button to manually select the address of the program. .

(3) Support to restore the default settings

When the user's firewall is improperly set and the system cannot access the network, but the user is not sure how to set up some applications. If you are unable to access the network, you can click the “Restore Defaults” button on the left side of the main interface of the Win7 firewall to restore the firewall configuration to the default state of the Win7 firewall.

How to open the system firewall in win7

Start-----Control panel

After entering the control panel, click System and Security

Click >windows
Firewall

We can see that the firewall on my computer is turned off

We click Yes, open the firewall, OK

Let's go back when you can see that we open up the firewall